SU910446A1 - Apparatus for treating rubber crumbs - Google Patents

Description

. (FOR) DEVICE FOR TREATING THE RUBBER LITTLE

one

The invention relates to processing equipment, in particular for drying rubber crumbs in an inert gas stream.

A device for processing rubber in an inert stream is known. g of gas, containing a housing with connections for inlet and outlet of media, a conical rotor mounted on the drive shaft with a concentrically installed, in its internal cavity a feed tube and blades 1.

However, such a device does not sufficiently use the energy of the heat-transfer agent when processing large granules.

A device for a rubber hood is known, comprising a housing with nozzles for supplying and discharging media, a conical rotor mounted on a drive shaft with a feed tube concentrically mounted in its internal cavity and blades and forming helical blades mounted on the inner wall of the housing 2.

Such a device makes it more economical to use energy. A heat transfer medium when processing large granules. However, the device has large dimensions, in particular the height necessary to ensure high-quality rubber processing and processing time.

The aim of the invention is to reduce the size of the device while ensuring the required processing time for the rubber crumbs.

Claims (1)

This goal is achieved by the fact that in a device containing a housing with nozzles for supplying and discharging media mounted on a drive shaft, a conical rotor is concentrically mounted in its internal cavity with a feed tube and blades and forming helical channels of the blade mounted on the inner wall of the housing a part of the supply pipe is exhausted in the form of hollow truncated cones interconnected by broad bases and provided with a lasting divider concentrically mounted in the cavity, forming lateral sides annular gap and a spiral element located in the annular gap. In this case, the divider is made in the form of a body of rotation formed by two cones facing each other with bases. The drawing shows the device, the overall appearance. The device contains a sealed housing 1 with a nozzle 2 for removal of inert gas by means of a fan 3 to the regeneration system, including a condenser 4 and a heater 5 and a cavity connected by a helical blade 6 through nozzle 7. A nozzle 8 is provided for unloading crumbs of commercial rubber. The housing 1 is mounted with a conical rotor 9 mounted on the drive shaft 10, made with blades 11 in the bottom 12. The housing has a port 13 for introducing inert gas into the internal cavity of the rotor 9 and a socket 14 for outputting it 13 of the case 1. Floors the blade 6 is made with a perforated wall 15. In the cavity of the rotor 9, the lower part of the supply pipe 16 with 17 ° blades is installed. The lower part of the pipes is made up of cones 18 and 19 ° interconnected by a wide base. bodies of revolution formed by two cones facing each other — their bases. Between the divider 20 and the cones 18 and 19 there is formed an annular gap 21 in which the spiral element 22 is mounted. The device operates as follows. Planted out of solution in a degasser (not shown in the drawing), the rubber crumbs are fed to a vibrating screen (not shown in the drawing), where it is covered with dusty composition when moisture is removed. The rubber crumb mixed with the dusting compound is guided through the feed pipe 16 and cones 18, 13, where inert gas is swirled in the gap 21 by means of the spiral element 22. The inert gas is supplied through the nozzle 13 and injected by the rotor blades 11 of the rotor 9. The spent inert gas discharged through pipe 2 into the system for renegeneration. In a vortex flow of inert gas, the rubber crumbs roll into globules. When exposed to a counter flow of inert gas, the flow changes its trajectory, first flowing up in the central part of the cavity of the cones 18 and 19, and then in the widest part of the latter while reducing the speed and lift force of the flow of the inert gas, rolling down along the periphery of the cone cavity. The rubber is discharged through the lower opening of the cone 19 into the internal cavity of the rotor 9. In the cavity of the latter, additional wrapping and drying of the rubber crumbs takes place, which with blades 17 moves into the cavity of the housing 1, Drying on the perforated wall 15 of the hollow helical blade 6, into the internal cavity of which inert gas is supplied through the pipe 7. The inert gas is injected into the pipe by the fan 3 from the system to regenerate the exhaust gas. From the hermetic body 1, partially spent inert gas is discharged through the pipe 1 and returns to the rotor cavity through the pipe 13, and the commercial rubber in the form of globules enters through the pipe 8 to be cooled and packaged in inert gas into plastic bags. The proposed implementation of the lower part of the supply pipe will provide the processing time required for high-quality processing of rubber crumbs while reducing the size of the device by changing the flow path of rubber crumbs when flowing in the lower part of the pipe. Installing the dissector with blades reduces the height of the fountain, and the spiral element in the annular gap contributes change the trajectory of the flow of rubber crumbs. Claim 1 "Device for treating rubber crotch, comprising a housing with nozzles for inlet and outlet of media, a conical rotor mounted on a drive shaft with a supply tube and blades installed in the inner cavity of the drive shaft and blades formed on the inner wall of the housing, characterized by the fact that, in order to reduce the dimensions of the device while ensuring the required quality of processing, the lower part of the supply pipe is made in the form of interconnected broad bases mi hollow truncated cone and provided with a cavity established koktsentrichno last divider, forming the sides of the cones annular gap and disposed in the annular gap spiral elements. 2, The device according to Claims T, about tl and that the divider is made in the form of a body of rotation formed by two cones, facing each other with their bases. Sources of information taken into account in the examination 1. USSR author's certificate N 66236. CL, H 29 N 1/00, 1976. 2, USSR Copyright Certificate If If 2679136 / 23-05, C, H 29 And 1 / 06, 1978 (prototype)